PLASTIC RING BINDER 9/16' 14MM | Trinity Marketing Inc.
Elba Plastic Ring Binder A4 25mm Capacity 35mm Spine 2 O-Ring Blue (Pack 10) 400001508
Jiangtai Binding Rings PVC Binder Comb Ring Plastic OEM Packaging Materials 21 Holes Ring Binder Circle Oval Rubber Circle - China Plastic Comb Ring, Book Binding Ring | Made-in-China.com